1)   NTPort Library 2.6.1
NTPort Library enables your Win32 application to real-time direct access to PC I/O ports without using the Windows Drivers Development Kit(DDK) - NTPort Library provides support for Windows 95/98/ME and Windows NT/2000/XP/Server 2003.
inport, outport, inp, outp, port, I/O,

 2)   AXIO 1.0
This ActiveX control is intended for used with ISA I/O Cards based around the Intel 8255A and 82C55A micro controller. It works as a simple interface between the software you write and the hardware you want to control.
I/O, ActiveX, VB, Visual Basic, 8255, 8255A, 82C55A, INP, OUT,